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A microscope has an objective lens with a focal length of 15.0 mm . A small...

A microscope has an objective lens with a focal length of 15.0 mm . A small object is placed 0.90 mm beyond the focal point of the objective lens.


Part A) At what distance from the objective lens does a real image of the object form?

My answer: s' = 270 mm

Part B) What is the magnification of the real image?

My answer: m = -17

Part C) If an eyepiece with a focal length of 2.5 cm is used, with a final image at infinity, what will be the overall angular magnification of the object?

M = ?

I need help on part C, please include steps so I can follow along!

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